generally speaking, the absorption is a little slower SQ than IM but that is about it and a small volume like GH it isnt going to be much different at all. often things are recommended SQ to avoid the damage to the muscle belly. but other than that, there isnt any reason not to go IM if the inflammatory reaction from SQ is bothering you. it is being absorbed whether it is fat or muscle that you inject it in.
i had gotten the welt and bruising from when i had run IGF1, i quit pinning directly under my belly button and moved my injection site more to the side where the skin was looser and that fixed the problemo